DRACOCEPHALUM. XCIII. LABIAT^E. 425 



1. N. CATARIA. Catiiep. Catmint. (Fig. 51.) 



Erect, tall, hoary-tomentose ; Ivs. petiolate, cordate, coarsely crenate-ser- 

 rate ; fls. spiked, the whorls slightly pedunculated. 7|. This common plant is 

 naturalized everywhere about old buildings and fences. Cats are very fond of 

 it and wfll often devour it with the greatest avidity. Stem square, pubescent, 

 branching, 2 3f high. Leaves very evenly bordered by tooth-like or crenate 

 serratures, and as well as the whole plant, covered with a soft, hoary down, 

 paler beneath. Flowers many, white or purplish, the lower lip dotted with 

 crimson. July. 



2. N. GLECHOMA. Benth. (Glechoma hederacea. Linn.') Gill-over-t he- 

 ground. Ground Ivy. (Fig. 51.) Lvs. ren/form, crenate; cor. about 3 



times as long as the calyx. 7L A creeping plant, naturalized about hedges, 

 walls, &c. Stems. prostrate, radicating at base, square, varying in length from 

 a few inches to 1 2f. Leaves petiolate, opposite, roundish, cordate-reniform, 

 hairy and glaucous. Flowers axillary, about 3 together. Corolla bluish-pur- 

 ple, with a variegated throat. The 2 anthers of each pair of stamens meet 

 with their 2 divaricate cells, forming the appearance of a cross. The plant is 

 aromatic, and was formerly used in ale, also in medicine. May. 



24. LOPHANTHUS. Benth. 



Gr. Aotfoj, a crest, av$os ; flowers in dense, terminal spikes; 



Calyx 15-ribbed, oblique, 5-cleft, upper segments longer; corolla 

 bilabiate, upper lip bifidly emarginate, lower lip 3-lobed, the middle 

 lobe broader and crenate ; stamens diverging. 



1. L. NEPEToiDEs. Benth. (Hyssopus. Linn.) 



St. smooth, quadrangular, with the angles acute and slightly winged ; hs. 

 ovate and ovate-lanceolate, acutely serrate; petioles smoothish. 7J. Middle! 

 and Western States ! A tall, branching, pale green herb, common about fences 

 and dry hedges. Stem 3 6f high, the sides somewh.it concave, and the angles 

 prominent. . Leaves acuminate, about 4' by 2'. ^Flowers in crowded, axillary 

 verticils, forming a terminal, green spike, which is nearly continuous above. 

 Corolla greenish-yellow. Stamens exserted. July, Aug. 



2. L. SCHROPHULARIFOLIUS. Benth. (Hyssopus. Linn.) 



St. pubescent, quadrangular, with the 'angles obtuse; Ivs. cordate-ovate, 

 crenate-serrate ; petioles ciliate-pubescent. Tj. Tall, stout and branching, with 

 the general aspect of the former species, and found in similar situations. The 

 herbage is often changed to dark purple. Stem 2 4f high, purple. Leaves 

 about 5' by 3', coarsely serrate, acuminate. Flowers in crowded, axillary ver- 

 ticils, forming a long, dense, terminal spike. Corolla pale purple, more con- 

 spicuous than in the first. Stamens and style exserted. July, Aug. 



25. DRACOCEPHALUM. 



Gr. JjOa/fO), dragon, /re^aXoj, head ; from the resemblance of the flowers. 



Calyx subequal, oblique, 5-cleft, upper segments larger ; cor. bila- 

 biate, upper lip vaulted, emarginate, throat inflated, lower lip spread- 

 ing, 3-cleft, middle lobe much larger, rounded or subdivided ; sta. 

 distinct, ascending, the upper pair longer than the lower. Flowers 

 axillary and terminal, usually with large, conspicuous bracts. 



1. D. CORDATUM. Nutt. Cordate-leaved Dragonhead. 



Stoloniferous; st. and elongated petioles pubescent; Ivs. cordate, obtusely 

 crenate, sparingly hirsute above ; spike unilateral ; bracts broad-ovate, entire, 

 nearly as long as the calyx ; ped. bibracteolate, mostly 1-flowered ; cal. segments 

 acute, almost pungent. 7J. Islands of the Ohio, 40 miles below Pittsburg, Null- 

 all. Stem about If high, quadrangular. Leaves 3 or 4 pairs, obtusely cor- 

 date, almost as broad as long, petiole about as long as the lamina (I'), uppei 

 pairs subsessile. Flowers secund. Corolla pale blue, about 1' long,' crifice 

 much dilated. June. 



